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josecresaf9063

    Collar spring
    0:07
    Automotive spring manufacturing
    0:11
    Relaxing videos
    0:12
    Decompression video (spring manufacturing)
    0:04
    Count the number of laps
    0:09
    Make a spring with a hook
    0:08
    How many laps are there in total?
    0:14
    This is how the spring came to be
    0:05
    Circle spring
    0:06
    A collection of perfect products
    0:12
    this is slow
    0:15
    Results of the R&D Center Design
    0:09
    This material is thick, but needs to be processed
    0:05
    new trick hahaha
    0:09
    The result of research and development from next-door neighbors
    0:18
    How about such a machine
    0:06
    The curvature of the new material
    0:09
    Spring manufacturing process
    0:03
    Display of different materials
    0:09
    New Technology
    0:24
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